Right side pain/extreme swelling 6 months after sliding genioplasty?

Swelling came on the right side of my chin 1 month ago which gradually got worse, now the right side of my chin is very swollen/looks lopsided& very painful. Dentist said teeth are fine, swelling is coming from chin, thinks it's related to surgery & I need to see a surgeon. Antibiotics helped pain a little but swelling is really bad still. There's a hard painful red lump inside mouth infront of bottom teeth which he worries is a screw. What could be causing this? Should I contact my surgeon?